Drop Forged Carbon Steel Double-ended Open-end Oil Quenched Heat Treated
Product Spotlights
Welcome to Cangzhou Dean Safety & Special Tools Co., Ltd – your reliable manufacturer of professional-grade hand tools since 2001. With an annual export value exceeding US$100 million, we specialize in producing drop forged carbon steel double-ended open-end wrenches that undergo strict oil quenching heat treatment for enhanced durability. Each wrench is engineered to deliver consistent torque performance, precise fit, and long service life in demanding industrial environments. Our manufacturing expertise ensures that every tool meets international quality standards, making us a trusted partner for distributors and end-users across North America, South America, Europe, Asia, and beyond.
Product Overview
This drop forged carbon steel double-ended open-end wrench is designed for heavy-duty applications where strength and reliability are paramount. The double-ended configuration allows faster fastening and loosening of nuts and bolts in tight spaces. The open-end design provides easy engagement with hexagonal fasteners, reducing the risk of rounding corners. Through controlled oil quenching and tempering, the steel achieves optimal hardness and toughness, resisting wear and deformation even under repeated high-torque use.
Key Features & Technical Specifications
- Material: High-grade carbon steel, drop forged for superior grain structure and density.
- Heat Treatment: Oil quenched and tempered to achieve HRC 40–48 hardness for excellent strength and fatigue resistance.
- Design: Double-ended open-end profile – both ends feature the same or different sizes for versatility.
- Finish: Standard black oxide coating for corrosion resistance; other finishes (phosphate, chrome) available upon request.
- Precision: Jaw openings are machined to tight tolerances (ISO 7738 or equivalent) for secure grip on fasteners.
- Ergonomics: Smooth, chamfered edges reduce hand fatigue during prolonged use.
- Customization: Sizes from 6mm to 50mm (metric) or 1/4" to 2" (inch), with custom size combinations and laser marking options.
| Parameter | Value |
|---|---|
| Material Grade | 45# steel or equivalent carbon steel |
| Forging Method | Drop forged (closed-die) |
| Heat Treatment Process | Oil quenching + tempering |
| Hardness (HRC) | 40–48 |
| Jaw Angle | 15° offset (standard), also available in 0°, 30°, 45° |
| Surface Finish | Black oxide (standard), other finishes customizable |
| Packing | Bulk, blister card, or customized polybag/set |
Advantages Over Competitors
- Consistent Quality: Our in-house forging and heat treatment lines ensure every wrench meets uniform hardness and strength specs.
- Long Service Life: Oil quenching reduces internal stresses and minimizes risk of cracking or deformation under heavy load.
- Cost Efficiency: Drop forging combined with carbon steel offers an excellent balance of performance and affordability.
- Global Logistics: We ship from Tianjin, Shanghai, and Ningbo ports, with reliable delivery to all major markets.
Trust & Credibility
Since 2001, Cangzhou Dean Safety & Special Tools Co., Ltd has been a dedicated manufacturer serving global clients. With an annual export value exceeding US$100 million, we have built long-term partnerships with customers in over 20 countries. Our production facility in Cangzhou, Hebei, is equipped with advanced forging presses, heat treatment furnaces, and precision machining centers. Every batch is subject to strict quality control, including hardness testing, dimensional inspection, and torque verification. We are committed to providing tools that professionals can rely on day after day.
FAQ
-
Q: What sizes are available for this wrench?
A: We offer metric sizes from 6mm to 50mm and inch sizes from 1/4" to 2". Custom size combinations (e.g., 10×12mm) can be produced per request. -
Q: Is the wrench suitable for use with impact tools?
A: This is a hand tool designed for manual use. For impact applications, we recommend our impact socket line. However, the high hardness provides some resistance to moderate impact when used carefully. -
Q: Can I get the wrench with a different finish or color?
A: Yes, we offer phosphate, chrome plating, or plain oiled finish as options. Please specify your requirement when ordering. -
Q: What is the typical lead time for bulk orders?
A: For standard sizes and black oxide finish, lead time is 20–30 days after order confirmation. Custom sizes or finishes may require 35–45 days. -
Q: Do you provide samples before mass production?
A: Yes, samples can be provided. Sample cost and shipping are chargeable, and it will be deducted from the final order if quantity is sufficient. -
Q: How do you ensure quality consistency?
A: We conduct 100% hardness testing on each batch, and dimensional checks on 10% of samples. Torque testing is performed according to ISO 7738 standard. -
Q: What is the MOQ (minimum order quantity)?
A: For standard sizes, MOQ is 500 pieces per size. For customized sizes or special finishes, MOQ is 1000 pieces per size. -
Q: Can you mark my brand logo on the wrench?
A: Yes, laser engraving, stamping, or embossing is available. Please provide the logo artwork in vector format.
Contact us today for competitive pricing, professional technical support, and reliable supply. Whether you need standard double-ended open-end wrenches or custom tool sets, Cangzhou Dean is your trusted partner in the global tool market.
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